Bug #45537: librados calls after fork() result in lockdep aborts - Ceph - Ceph

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Bug #45537

closed

librados calls after fork() result in lockdep aborts

Added by David Disseldorp almost 4 years ago. Updated almost 3 years ago.

Status:

Won't Fix

Priority:

Normal

Assignee:

David Disseldorp

Category:

librados

Target version:

% Done:

Source:

Community (dev)

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

While working on Samba / Ceph integration, I noticed that librados doesn't play nicely with fork().
I wrote a simple reproducer (to be attached) which performs the following:
- rados_create(... &ctx1)->rados_connect(ctx1 ...)
- fork()
- child process: rados_create(... &ctx2)->rados_connect(ctx2 ...)

This results in an abort in the lockdep code path.

Files

0001-test-librados-fork-test.patch (2.93 KB) 0001-test-librados-fork-test.patch

simple librados fork unit test

David Disseldorp, 05/13/2020 07:18 PM